serviceEntryHosts map[util.ScopedFqdn]*v1alpha3.ServiceEntry,
) {
	vs := r.Message.(*v1alpha3.VirtualService)

	for _, d := range getRouteDestinations(vs) {
		s := util.GetDestinationHost(r.Metadata.FullName.Namespace, vs.ExportTo, d.Destination.GetHost(), serviceEntryHosts)
		if s == nil {

			m := msg.NewReferencedResourceNotFound(r, "host", d.Destination.GetHost())

			if ns == ExportToNamespaceLocal {
				scopes = append(scopes, resourceNamespace)
			} else {
				scopes = append(scopes, ns)
			}
		}
	}
	return scopes
}

func GetDestinationHost(sourceNs resource.Namespace, exportTo []string, host string,
	serviceEntryHosts map[ScopedFqdn]*v1alpha3.ServiceEntry,
) *v1alpha3.ServiceEntry {